package com.car.loan.project.system.service.impl;

import com.car.loan.common.constant.UserConstants;
import com.car.loan.common.enums.SwitchStatus;
import com.car.loan.common.enums.UserStatus;
import com.car.loan.common.exception.CustomException;
import com.car.loan.common.utils.StringUtils;
import com.car.loan.framework.aspectj.lang.annotation.DataScope;
import com.car.loan.framework.web.domain.BaseEntity;
import com.car.loan.framework.web.domain.TreeSelect;
import com.car.loan.project.cm.util.bo.BusinessDeptBo;
import com.car.loan.project.system.domain.SysDept;
import com.car.loan.project.system.domain.SysUserDataAuthDept;
import com.car.loan.project.system.domain.SysUserDataAuthUser;
import com.car.loan.project.system.domain.bo.SysDeptByUserBo;
import com.car.loan.project.system.domain.bo.UserDataAuthDeptBo;
import com.car.loan.project.system.domain.vo.SysDeptByUserVo;
import com.car.loan.project.system.domain.vo.SysDeptByUserVo.DeptUser;
import com.car.loan.project.system.mapper.SysDeptMapper;
import com.car.loan.project.system.mapper.SysUserDataAuthDeptMapper;
import com.car.loan.project.system.mapper.SysUserDataAuthUserMapper;
import com.car.loan.project.system.service.ISysDeptService;
import com.car.loan.project.tool.controller.BaseDataController.DeptBusinessList;
import com.google.common.collect.Lists;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.stream.Collectors;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

/**
 * 部门管理 服务实现
 *
 * @author ruoyi
 */
@Service
public class SysDeptServiceImpl implements ISysDeptService {

    @Autowired
    private SysDeptMapper deptMapper;

    @Autowired
    private SysUserDataAuthUserMapper sysUserDataAuthUserMapper;

    @Autowired
    private SysUserDataAuthDeptMapper sysUserDataAuthDeptMapper;

    /**
     * 查询部门管理数据
     *
     * @param dept 部门信息
     * @return 部门信息集合
     */
    @Override
    @DataScope(deptAlias = "d", userAlias = "u")
    public List<SysDept> selectDeptList(SysDept dept) {
        return deptMapper.selectDeptList(dept);
    }

    @Override
    @DataScope(deptAlias = "d", userAlias = "u")
    public List<SysDept> selectBusinessDeptListByNameAndStatus(DeptBusinessList deptBusinessList) {
        List<Integer> statusList = Lists.newArrayList();
        statusList.add(Integer.parseInt(UserStatus.OK.getCode()));
        if (null != deptBusinessList.getOf() && deptBusinessList.getOf() == SwitchStatus.PASS.status) {
            statusList.add(Integer.parseInt(UserStatus.DISABLE.getCode()));
        }
        BusinessDeptBo businessDeptBo = new BusinessDeptBo();
        businessDeptBo.setDeptName(deptBusinessList.getName());
        businessDeptBo.setStatusList(statusList);
        businessDeptBo.setDataScope(deptBusinessList.getDataScope());
        return deptMapper.selectBusinessDeptListByNameAndStatus(businessDeptBo);
    }

    @Override
    @DataScope(deptAlias = "dept", userAlias = "user")
    public List<SysDeptByUserVo> buildDeptUserTree(BaseEntity baseEntity) {
        List<SysDeptByUserBo> sysDeptByUserBos = deptMapper.findByDeptByUser(baseEntity);
        //先匹配所有公司的员工
        List<SysDeptByUserVo> sysDeptByUserVos = new ArrayList<>();
        Map<Integer, List<SysDeptByUserBo>> sysDeptByUserVosMap = sysDeptByUserBos.stream()
            .collect(Collectors.groupingBy(SysDeptByUserBo::getDeptId));
        sysDeptByUserVosMap.forEach((key, val) -> {
            SysDeptByUserBo sysDeptByUserBo = val.get(0);
            SysDeptByUserVo sysDeptByUserVo = new SysDeptByUserVo();
            sysDeptByUserVo.setDeptId(key);
            sysDeptByUserVo.setParentId(sysDeptByUserBo.getParentId());
            sysDeptByUserVo.setDeptName(sysDeptByUserBo.getDeptName());
            val.stream().filter(s -> StringUtils.isNotEmpty(s.getUserName()))
                .forEach(sysDeptByUserBo1 -> {
                    DeptUser deptUser = new DeptUser();
                    deptUser.setUserStatus(sysDeptByUserBo1.getUserStatus());
                    deptUser.setId(sysDeptByUserBo1.getUserId());
                    deptUser.setName(sysDeptByUserBo1.getUserName());
                    sysDeptByUserVo.getDeptUsers().add(deptUser);
                });
            sysDeptByUserVos.add(sysDeptByUserVo);
        });
        //构建部门树
        List<SysDeptByUserVo> returnList = new ArrayList<SysDeptByUserVo>();
        for (Iterator<SysDeptByUserVo> iterator = sysDeptByUserVos.iterator();
            iterator.hasNext(); ) {
            SysDeptByUserVo t = iterator.next();
            // 根据传入的某个父节点ID,遍历该父节点的所有子节点
            if (t.getParentId() == 0) {
                recursionFn(sysDeptByUserVos, t);
                returnList.add(t);
            }
        }
        if (returnList.isEmpty()) {
            returnList = sysDeptByUserVos;
        }
        return returnList;
    }

    @Override
    @DataScope(deptAlias = "dept", userAlias = "user")
    public List<SysDeptByUserVo> buildDeptUserDataAuthTree(UserDataAuthDeptBo userDataAuthDeptBo) {
        List<SysDeptByUserBo> sysDeptByUserBos = deptMapper.findByDeptByUser(userDataAuthDeptBo);

        //获取权限数据
        List<SysUserDataAuthUser> sysUserDataAuthUsers = Lists.newArrayList();
        if (null != userDataAuthDeptBo.getUserId() && userDataAuthDeptBo.getUserId() > 0) {
            sysUserDataAuthUsers = sysUserDataAuthUserMapper
                .selectSysUserDataAuthUserById(userDataAuthDeptBo.getUserId());
            if (null == sysUserDataAuthUsers) {
                sysUserDataAuthUsers = Lists.newArrayList();
            }
        }

        Set<Long> dataUserIdSet = sysUserDataAuthUsers.stream()
            .map(SysUserDataAuthUser::getDataUserId)
            .collect(Collectors.toSet());

        List<SysUserDataAuthDept> sysUserDataAuthDepts = Lists.newArrayList();
        if (null != userDataAuthDeptBo.getUserId() && userDataAuthDeptBo.getUserId() > 0) {
            sysUserDataAuthDepts = sysUserDataAuthDeptMapper
                .selectSysUserDataAuthDeptById(userDataAuthDeptBo.getUserId());
            if (null == sysUserDataAuthDepts) {
                sysUserDataAuthDepts = Lists.newArrayList();
            }
        }

        Set<Integer> dataDeptIdSet = sysUserDataAuthDepts.stream()
            .map(SysUserDataAuthDept::getDeptId)
            .collect(Collectors.toSet());

        List<SysDeptByUserVo> sysDeptByUserVos = new ArrayList<>();
        Map<Integer, List<SysDeptByUserBo>> sysDeptByUserVosMap = sysDeptByUserBos.stream()
            .collect(Collectors.groupingBy(SysDeptByUserBo::getDeptId));
        sysDeptByUserVosMap.forEach((key, val) -> {
            SysDeptByUserBo sysDeptByUserBo = val.get(0);
            SysDeptByUserVo sysDeptByUserVo = new SysDeptByUserVo();
            sysDeptByUserVo.setDeptId(key);
            if (dataDeptIdSet.contains(key)) {
                sysDeptByUserVo.setSelect(true);
            }
            sysDeptByUserVo.setParentId(sysDeptByUserBo.getParentId());
            sysDeptByUserVo.setDeptName(sysDeptByUserBo.getDeptName());
            val.stream().filter(s -> StringUtils.isNotEmpty(s.getUserName()))
                .forEach(sysDeptByUserBo1 -> {
                    DeptUser deptUser = new DeptUser();
                    deptUser.setUserStatus(sysDeptByUserBo1.getUserStatus());
                    if (dataUserIdSet.contains(sysDeptByUserBo1.getUserId())) {
                        deptUser.setSelect(true);
                    }
                    deptUser.setId(sysDeptByUserBo1.getUserId());
                    deptUser.setName(sysDeptByUserBo1.getUserName());
                    sysDeptByUserVo.getDeptUsers().add(deptUser);
                });
            sysDeptByUserVos.add(sysDeptByUserVo);
        });

        //构建部门树
        List<SysDeptByUserVo> returnList = new ArrayList<SysDeptByUserVo>();
        for (Iterator<SysDeptByUserVo> iterator = sysDeptByUserVos.iterator();
            iterator.hasNext(); ) {
            SysDeptByUserVo t = iterator.next();
            // 根据传入的某个父节点ID,遍历该父节点的所有子节点
            if (t.getParentId() == 0) {
                recursionFn(sysDeptByUserVos, t);
                returnList.add(t);
            }
        }
        if (returnList.isEmpty()) {
            returnList = sysDeptByUserVos;
        }
        return returnList;
    }

    /**
     * 构建前端所需要树结构
     *
     * @param depts 部门列表
     * @return 树结构列表
     */
    @Override
    public List<SysDept> buildDeptTree(List<SysDept> depts) {
        List<SysDept> returnList = new ArrayList<SysDept>();
        for (Iterator<SysDept> iterator = depts.iterator(); iterator.hasNext(); ) {
            SysDept t = (SysDept) iterator.next();
            // 根据传入的某个父节点ID,遍历该父节点的所有子节点
            if (t.getParentId() == 0) {
                recursionFn(depts, t);
                returnList.add(t);
            }
        }
        if (returnList.isEmpty()) {
            returnList = depts;
        }
        return returnList;
    }

    /**
     * 构建前端所需要下拉树结构
     *
     * @param depts 部门列表
     * @return 下拉树结构列表
     */
    @Override
    public List<TreeSelect> buildDeptTreeSelect(List<SysDept> depts) {
        List<SysDept> deptTrees = buildDeptTree(depts);
        return deptTrees.stream().map(TreeSelect::new).collect(Collectors.toList());
    }


    /**
     * 根据部门ID查询信息
     *
     * @param deptId 部门ID
     * @return 部门信息
     */
    @Override
    public SysDept selectDeptById(Long deptId) {
        return deptMapper.selectDeptById(deptId);
    }

    /**
     * 是否存在子节点
     *
     * @param deptId 部门ID
     * @return 结果
     */
    @Override
    public boolean hasChildByDeptId(Long deptId) {
        int result = deptMapper.hasChildByDeptId(deptId);
        return result > 0 ? true : false;
    }

    /**
     * 查询部门是否存在用户
     *
     * @param deptId 部门ID
     * @return 结果 true 存在 false 不存在
     */
    @Override
    public boolean checkDeptExistUser(Long deptId) {
        int result = deptMapper.checkDeptExistUser(deptId);
        return result > 0 ? true : false;
    }

    /**
     * 校验部门名称是否唯一
     *
     * @param dept 部门信息
     * @return 结果
     */
    @Override
    public String checkDeptNameUnique(SysDept dept) {
        Long deptId = StringUtils.isNull(dept.getDeptId()) ? -1L : dept.getDeptId();
        SysDept info = deptMapper.checkDeptNameUnique(dept.getDeptName(), dept.getParentId());
        if (StringUtils.isNotNull(info) && info.getDeptId().longValue() != deptId.longValue()) {
            return UserConstants.NOT_UNIQUE;
        }
        return UserConstants.UNIQUE;
    }

    /**
     * 新增保存部门信息
     *
     * @param dept 部门信息
     * @return 结果
     */
    @Override
    public int insertDept(SysDept dept) {
//        if (null != dept.getParentId()) {
//            SysDept info = deptMapper.selectDeptById(dept.getParentId());
//            // 如果父节点不为正常状态,则不允许新增子节点
//            if (!UserConstants.DEPT_NORMAL.equals(String.valueOf(dept.getStatus()))) {
//                throw new CustomException("部门停用，不允许新增");
//            }
//            dept.setAncestors(info.getAncestors() + "," + dept.getParentId());
//        } else {
//        }
        //只能添加父级
        dept.setParentId(0L);
        dept.setAncestors("0");
        return deptMapper.insertDept(dept);
    }

    /**
     * 修改保存部门信息
     *
     * @param dept 部门信息
     * @return 结果
     */
    @Override
    public int updateDept(SysDept dept) {
        SysDept newParentDept = deptMapper.selectDeptById(dept.getParentId());
        SysDept oldDept = deptMapper.selectDeptById(dept.getDeptId());
        if (StringUtils.isNotNull(newParentDept) && StringUtils.isNotNull(oldDept)) {
            String newAncestors = newParentDept.getAncestors() + "," + newParentDept.getDeptId();
            String oldAncestors = oldDept.getAncestors();
            dept.setAncestors(newAncestors);
            updateDeptChildren(dept.getDeptId(), newAncestors, oldAncestors);
        }

        int result = deptMapper.updateDept(dept);
        if (UserConstants.DEPT_NORMAL.equals(String.valueOf(dept.getStatus()))) {
            // 如果该部门是启用状态，则启用该部门的所有上级部门
            updateParentDeptStatus(dept);
        }
        return result;
    }

    /**
     * 修改该部门的父级部门状态
     *
     * @param dept 当前部门
     */
    private void updateParentDeptStatus(SysDept dept) {
        String updateBy = dept.getUpdateBy();
        dept = deptMapper.selectDeptById(dept.getDeptId());
        dept.setUpdateBy(updateBy);
        deptMapper.updateDeptStatus(dept);
    }

    /**
     * 修改子元素关系
     *
     * @param deptId 被修改的部门ID
     * @param newAncestors 新的父ID集合
     * @param oldAncestors 旧的父ID集合
     */
    public void updateDeptChildren(Long deptId, String newAncestors, String oldAncestors) {
        List<SysDept> children = deptMapper.selectChildrenDeptById(deptId);
        for (SysDept child : children) {
            child.setAncestors(child.getAncestors().replace(oldAncestors, newAncestors));
        }
        if (children.size() > 0) {
            deptMapper.updateDeptChildren(children);
        }
    }

    /**
     * 删除部门管理信息
     *
     * @param deptId 部门ID
     * @return 结果
     */
    @Override
    public int deleteDeptById(Long deptId) {
        return deptMapper.deleteDeptById(deptId);
    }

    /**
     * 递归列表
     */
    private void recursionFn(List<SysDeptByUserVo> list, SysDeptByUserVo t) {
        // 得到子节点列表
        List<SysDeptByUserVo> childList = getChildList(list, t);
        t.setChildren(childList);
        for (SysDeptByUserVo tChild : childList) {
            if (hasChild(list, tChild)) {
                // 判断是否有子节点
                Iterator<SysDeptByUserVo> it = childList.iterator();
                while (it.hasNext()) {
                    SysDeptByUserVo n = (SysDeptByUserVo) it.next();
                    recursionFn(list, n);
                }
            }
        }
    }

    private void recursionFn(List<SysDept> list, SysDept t) {
        // 得到子节点列表
        List<SysDept> childList = getChildList(list, t);
        t.setChildren(childList);
        for (SysDept tChild : childList) {
            if (hasChild(list, tChild)) {
                // 判断是否有子节点
                Iterator<SysDept> it = childList.iterator();
                while (it.hasNext()) {
                    SysDept n = (SysDept) it.next();
                    recursionFn(list, n);
                }
            }
        }
    }


    /**
     * 得到子节点列表
     */
    private List<SysDept> getChildList(List<SysDept> list, SysDept t) {
        List<SysDept> tlist = new ArrayList<SysDept>();
        Iterator<SysDept> it = list.iterator();
        while (it.hasNext()) {
            SysDept n = (SysDept) it.next();
            if (n.getParentId().longValue() == t.getDeptId().longValue()) {
                tlist.add(n);
            }
        }
        return tlist;
    }

    private List<SysDeptByUserVo> getChildList(List<SysDeptByUserVo> list, SysDeptByUserVo t) {
        List<SysDeptByUserVo> tlist = new ArrayList<SysDeptByUserVo>();
        Iterator<SysDeptByUserVo> it = list.iterator();
        while (it.hasNext()) {
            SysDeptByUserVo n = (SysDeptByUserVo) it.next();
            if (n.getParentId().longValue() == t.getDeptId().longValue()) {
                tlist.add(n);
            }
        }
        return tlist;
    }

    /**
     * 判断是否有子节点
     */
    private boolean hasChild(List<SysDept> list, SysDept t) {
        return getChildList(list, t).size() > 0 ? true : false;
    }

    private boolean hasChild(List<SysDeptByUserVo> list, SysDeptByUserVo t) {
        return getChildList(list, t).size() > 0 ? true : false;
    }


}
